The adsorption of hydrogen fluoride and fluoride ion on a
The hydrogen fluoride (HF) and fluoride ion (F) adsorption potentials of a water treatment sludge from a treatment plant in Japan were investigated in a batch mode as a function of pH, contact time, initial fluoride concentrations, and other co-existing anions. The maximum removal of total fluoride was apparently observed at pH 5.1, whereas HF or F- adsorption showed nearly 100% at pH ranging...
The adsorption capacity was decreased when the temperature increased. This revealed that the adsorption of fluoride on SH was exothermic. In the presence of nitrate and carbonate ions in the aqueous solution, fluoride removal efficiency of SH decreased from 94.4% to 86.6% and 90.8%, respectively.
Fluoride adsorption on water treatment sludge processed
Water treatment sludge is an inescapable by-product generated in processing of drinking water. The fluoride adsorption potential of PAC (polyaluminium chloride)-processed water treatment sludge obtained from three different locations was investigated in a batch mode as a function of pH, contact time, initial fluoride concentration and other co-existing anions.
Water treatment sludge is an inescapable by-product generated in processing of drinking water. The fluoride adsorption potential of PAC (polyaluminium chloride)-processed water treatment sludge
Removal of fluoride in aqueous solution by adsorption
Removal of fluoride in aqueous solution by adsorption on acid activated water treatment sludge Article in Applied Surface Science 256(17):5458-5462 路 June 2010 with 100 Reads How we measure 'reads'
A Review on Adsorption of Fluoride from Aqueous Solution water such as coagulation, precipitation, membrane processes, electrolytic treatment, ion-exchange, the adsorption process is widely used. It offers satisfactory results and seems high quality water. The removal of fluoride by adsorption methods has been widely studied in recent
International Journal of Environmental Research and Public
The sludge from the water supply plant was investigated to remove fluoride ions from the water. To improve the adsorption ability, the original sludge sample was treated with fuel oxidation, pyrolysis, hydrochloric acid, and sulphuric acid methods, and hydrochloric acid treatment improved the adsorption capacity of the sludge on the fluoride in
Excitation鈭抏mission matrix (EEM) fluorescence spectroscopy has been widely used to characterize dissolved organic matter (DOM) in water and soil. However, interpreting the >10,000 wavelength-dependent fluorescence intensity data points represented in EEMs has posed a significant challenge. Fluorescence regional integration, a quantitative technique that integrates the volume beneath an EEM
Bioresource Technology - Earthinsight
Bioremediation of reject water from anaerobically digested waste water sludge with macroalgae (Ulva lactuca, Chlorophyta) Sidsel Sode and Annette Bruhn and Thorsten J.S. Balsby and Martin M酶rk Larsen and Annemarie 312.
The availability of a reliable supply of water is one of the most important determinants of human health, with the supply of clean drinking water being a...
Review Of In-Place Treatment Techniques For Contaminated
2. EPA-540/2-84-003b *. TfTLS ANO SUSTITi.拢 REVIEW OF IN-PLACE TREATMENT TECHNIQUES FOR CONTAMINATED SURFACE SOILS - VOLUME 2: BACKGROUND INFORMATION FOR IN-SITU TREATMENT 7. AUTHORIS) Ronald Sims 9. ?拢ai=Ofl.V)ING ORGANISATION NAME ANO AOORS53 Utah Water Research Laboratory Utah State University Loqan, Utah ' 84322 12.
Part III Problems arising from water treatment 14 Water treatment 245 14.1 Introduction 245 14.2 Unit processes 246 14.3 Process selection 260 14.4 How problems arise 261 14.5 Conclusions 267 References 268 Contents vii 15 Aluminium and acrylamide 270 15.1 Aluminium 270 15.2 Acrylamide 277 15.3 Conclusions 278 References 279 16 Odour and taste 282
- What are the different types of anionic polyacrylamide synthesis technologies?
- The paper lists six different kinds of anionic polyacrylamide synthesis technologies, including homopolymerization posthydrolysis process, homopolymerization cohydrolysis process, copolymerization approach, inverse emulsion polymerization, precipitation polymerization and radiation polymerization.
- Can anionic polyacrylamide be used in water treatment?
- What's more, the authors discussed the application status of anionic polyacrylamide in water treatment. Based on these reviews, future research perspectives relating to its synthesis and application were proposed. This review summarizes the synthesis methods for anionic polyacrylamide.
- How is polyacrylamide a hydrolyzed polymer?
- The process generally involves the addition of a strong base to a homopolymer of polyacrylamide. This can be done in an aqueous solution, inverse emulsion. Recently, a process to produce dry forms of hydrolyzed polyacrylamide has been developed. This allows for the preparation of very high-molecular-weight anionic polymers.
- What is anionic polyacrylamide (Apam)?
- 1. Introduction Anionic polyacrylamide (APAM) is a kind of organic high-molecular polymer with high hydrophilicity and viscosity, which is easily dissolved in water [ , , ].
